CN111504843A - Catalyst coating falling rate detection device and method - Google Patents
Catalyst coating falling rate detection device and method Download PDFInfo
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- CN111504843A CN111504843A CN202010407253.6A CN202010407253A CN111504843A CN 111504843 A CN111504843 A CN 111504843A CN 202010407253 A CN202010407253 A CN 202010407253A CN 111504843 A CN111504843 A CN 111504843A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/04—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder
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Abstract
The application provides a catalyst coating falling rate detection device and method, including testing platform, testing platform's surface is equipped with a pair of slide rail, and is a pair of set up the bracket on the slide rail, one side of testing platform corresponds the vertical direction of bracket sets up air knife mechanism, the last pneumatic drive mechanism who sets up the drive the bracket slides of testing platform. The beneficial effect of this application is: fix the piece that awaits measuring on the bracket, pneumatic actuating mechanism drive bracket slides along the slide rail, make the bracket at the uniform velocity through the air knife mechanism of the vertical direction that sets up in testing platform one side, the catalyst coating on the piece that awaits measuring sweeps the back through the full coverage of vertical air knife mechanism, insecure catalyst coating is blown down, consequently the quality of the piece that awaits measuring can change around the test, poor can indirect test the dropout rate that obtains catalyst coating through the quality around the test of the piece that awaits measuring, moreover, the steam generator is simple in operation, high reliability, high efficiency.
Description
Technical Field
The disclosure relates to the technical field of catalyst coating detection, in particular to a device and a method for detecting the falling rate of a catalyst coating.
Background
The firmness degree of the coating of the honeycomb carrier catalyst coating needs to be detected after production, and a common operation method in the prior art is to purge the end face of the catalyst by using a compressed air pipe manually, but the manual operation method has poor test stability, large data fluctuation, low accuracy and low efficiency, so that the falling rate of the catalyst coating cannot be detected accurately and efficiently.
Disclosure of Invention
The present application aims to solve the above problems and provide a device and a method for detecting a catalyst coating peeling rate.
In a first aspect, the application provides a catalyst coating rate of coming off detection device, including testing platform, testing platform's surface is equipped with a pair of slide rail, and is a pair of set up the bracket on the slide rail, testing platform's one side corresponds the vertical direction of bracket sets up air knife mechanism, the last drive that sets up of testing platform the pneumatic drive mechanism that the bracket slided.
According to the technical scheme that this application embodiment provided, pneumatic drive mechanism includes the cylinder of being connected with the air supply, the cylinder sets up between a pair of slide rail, the flexible direction of piston of cylinder is parallel with the extending direction of slide rail, and the piston end connection of cylinder is at the middle part of bracket, the joint can slide respectively on a pair of slide rail in the both sides of bracket.
According to the technical scheme that this application embodiment provided, set up the control valve between cylinder and the air supply, the control valve is used for controlling the atmospheric pressure of cylinder.
According to the technical scheme that this application embodiment provided, air knife mechanism is including setting up the wind chamber in testing platform one side perpendicularly, the wind chamber is linked together with the air supply, evenly set up the venthole that a plurality of vertical directions were arranged on the wind chamber, each the venthole corresponds the settlement position setting of slide rail.
According to the technical scheme provided by the embodiment of the application, a pressure stabilizing valve is arranged between the air cavity and the air source and used for controlling the air pressure of the air cavity.
According to the technical scheme that this application embodiment provided, the bracket includes the bottom plate, and the piston end connection of cylinder is in on the bottom plate, the bottom of bottom plate corresponds a pair of the slide rail sets up the sleeve pipe respectively, the sleeve pipe can be established in the slide rail outside with sliding, the bottom plate is kept away from bearing subassembly is connected to sheathed tube one side.
According to the technical scheme that this application embodiment provided, the bearing subassembly includes a pair of bearing portion, and is a pair of set up the fork frame of liftable between bearing portion and the bottom plate, the one end of fork frame is connected on the bottom plate, and the one end that the bottom plate was kept away from to the fork frame is connected respectively in the bottom of a pair of bearing portion, one side that the fork frame was kept away from to the bearing portion is equipped with and awaits measuring a bearing surface that a surface profile matches.
According to the technical scheme provided by the embodiment of the application, the fork shearing frame comprises a first connecting rod and a second connecting rod, the middle part of the first connecting rod is hinged with the middle part of the second connecting rod, and the first connecting rod and the second connecting rod are arranged in a crossed mode; an electric push rod is connected between the end parts of the first connecting rod and the second connecting rod, which are close to one side of the bottom plate, the electric push rod comprises a fixed part and a movable part, the fixed part is fixedly connected with the surface of the bottom plate, the fixed part is fixedly connected with the end part of the first connecting rod, and the movable part is fixedly connected with the end part of the second connecting rod; and one ends of the first connecting rod and the second connecting rod, which are far away from the electric push rod, are respectively connected to the bottoms of the pair of bearing parts.
In a second aspect, the present application provides a method for detecting a catalyst coating peeling rate, including the following steps:
weighing the detection piece to obtain a first mass;
placing a detection piece on the bracket, and controlling the bracket to slide on the sliding rail for a set time according to a set speed through the control valve and the air cylinder;
taking down the detection piece from the bracket, and weighing the detection piece to obtain a second mass;
the catalyst coat peeling-off rate is calculated from the difference between the first mass and the second mass.
The invention has the beneficial effects that: the application provides a device and a method for detecting the falling rate of a catalyst coating, a to-be-detected piece is fixed on a bracket, a pneumatic driving mechanism drives the bracket to slide along a sliding rail, the bracket is enabled to pass through an air knife mechanism arranged in the vertical direction on one side of a detection platform at a constant speed, the catalyst coating on the to-be-detected piece is blown down after being fully covered by the vertical air knife mechanism, the unstable catalyst coating is blown down, therefore, the quality of the to-be-detected piece changes before and after testing, the falling rate of the catalyst coating can be obtained through indirect testing through the quality difference of the to-be-detected piece before and after testing, the falling rate detection method performed through the detection device is simple in operation, high in reliability and high in.
Drawings
FIG. 1 is a schematic top view of a first embodiment of the present application;
FIG. 2 is a schematic side view of the first embodiment of the present application;
FIG. 3 is a schematic structural view of a first embodiment of a wind knife mechanism of the present application;
FIG. 4 is a schematic structural view of a bracket according to a first embodiment of the present application;
FIG. 5 is a flow chart of a second implementation of the present application;
the text labels in the figures are represented as: 100. a detection platform; 200. a slide rail; 300. a bracket; 310. a base plate; 320. a sleeve; 330. a bearing part; 341. a first connecting rod; 342. a second connecting rod; 351. a fixed part; 352. a movable portion; 400. an air knife mechanism; 410. a wind cavity; 420. an air outlet; 430. a pressure maintaining valve; 510. a cylinder; 520. a control valve; 600. and (4) a gas source.
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present invention, the following detailed description of the present invention is provided in conjunction with the accompanying drawings, and the description of the present section is only exemplary and explanatory, and should not be construed as limiting the scope of the present invention in any way.
Fig. 1 to fig. 3 are schematic diagrams illustrating a first embodiment of the present application, and the first embodiment of the present application includes a detection platform 100, a pair of slide rails 200 is disposed on a surface of the detection platform 100, a bracket 300 is disposed on the slide rails 200, an air knife mechanism 400 is disposed on one side of the detection platform 100 corresponding to a vertical direction of the bracket 300, and a pneumatic driving mechanism for driving the bracket 300 to slide is disposed on the detection platform 100.
In this embodiment, the carrier of piece for having the honeycomb to await measuring, fix the piece that awaits measuring on bracket 300, pneumatic drive mechanism drive bracket 300 slides along slide rail 200, make bracket 300 at the uniform velocity through the air knife mechanism 400 that sets up the vertical direction in testing platform 100 one side, the catalyst coating on the piece that awaits measuring sweeps the back through the full coverage of vertical air knife mechanism 400, insecure catalyst coating is blown down, consequently the quality of the piece that awaits measuring changes around the test, the poor shedding rate that can indirect test obtain catalyst coating through the quality difference before and after the piece that awaits measuring tests.
In a preferred embodiment, the pneumatic driving mechanism comprises a cylinder 510 connected to the air source 600, the cylinder 510 is disposed between the pair of slide rails 200, a piston extending direction of the cylinder 510 is parallel to an extending direction of the slide rails 200, a piston end of the cylinder 510 is connected to a middle portion of the bracket 300, and two sides of the bracket 300 are slidably engaged with the pair of slide rails 200 respectively.
In the preferred embodiment, the cylinder 510 drives the piston end of the cylinder 510 to push the carriage 300 to slide along the slide rail 200, and the piston end of the cylinder 510 is connected to the middle of the carriage 300 to ensure that the piston end of the cylinder 510 can stably push the carriage 300 to slide along the slide rail 200.
Preferably, a control valve 520 is disposed between the air cylinder 510 and the air source 600, and the control valve 520 is used for controlling the air pressure of the air cylinder 510. In the preferred embodiment, control valve 520 controls the opening and closing of air cylinder 510 and the speed at which carriage 300 moves along sled 200 via air cylinder 510.
In a preferred embodiment, the air knife mechanism 400 includes an air cavity 410 vertically disposed on one side of the detection platform 100, the air cavity 410 is communicated with an air source 600, a plurality of air outlets 420 vertically arranged are uniformly disposed on the air cavity 410, and each air outlet 420 is disposed corresponding to a set position of the slide rail 200.
In this preferred embodiment, each venthole 420 of air cavity 410 is vertical to be set up for air knife mechanism 400 carries out vertical all standing to be measured and sweeps, sweeps through air knife mechanism 400 can blow off the insecure catalyst coating on the piece that awaits measuring, can effectively detect the amount of coming off of the catalyst coating on the piece that awaits measuring through carrying out abundant sweeping to the piece that awaits measuring, thereby the rate of coming off that obtains the catalyst coating of accurate calculation.
Preferably, a pressure stabilizing valve 430 is arranged between the air cavity 410 and the air source 600, and the pressure stabilizing valve 430 is used for controlling the air pressure of the air cavity 410. In the preferred embodiment, the purging air volume of the air knife mechanism 400 is controlled by the pressure stabilizing valve 430, so that the consistency of each detection test is ensured, and the detection accuracy is improved.
In a preferred embodiment, as shown in fig. 4, the bracket 300 includes a bottom plate 310, a piston end of a cylinder 510 is connected to the bottom plate 310, sleeves 320 are respectively disposed at a bottom of the bottom plate 310 corresponding to a pair of the slide rails 200, the sleeves 320 are slidably disposed on outer sides of the slide rails 200, and a side of the bottom plate 310 away from the sleeves 320 is connected to a supporting member.
In the preferred embodiment, the pair of sleeves 320 are disposed on the bottom plate 310 of the bottom plate 310, and the sleeves 320 are sleeved on the outer side of the slide rail 200, so that the sleeves 320 can slide along the slide rail 200, and simultaneously the bottom plate 310 is driven to move along the slide rail 200. In this preferred embodiment, the supporting subassembly sets up and is used for the bearing to await measuring the piece, fixes the piece that awaits measuring on the supporting subassembly.
In a preferred embodiment, the supporting assembly includes a pair of supporting portions 330, a pair of fork-shearing frames capable of ascending and descending are disposed between the supporting portions 330 and the base plate 310, one end of the fork-shearing frame is connected to the base plate 310, one ends of the fork-shearing frames far away from the base plate 310 are respectively connected to bottoms of the pair of supporting portions 330, and a supporting surface matched with a surface profile of the object to be tested is disposed on one side of the supporting portions 330 far away from the fork-shearing frame.
In the preferred embodiment, the height of the pair of supporting portions 330 with respect to the base plate 310 is adjusted by the fork frame capable of moving up and down, and the height of the supporting portions 330 with respect to the air knife mechanism 400 is adjusted according to the heights of different objects to be measured. In this preferred mode, the supporting surface that sets up on supporting portion 330 and to be measured a surface profile matching can make to be measured more firm when placing supporting portion 330, guarantees the stability of device work.
Preferably, the fork arm comprises a first connecting rod 341 and a second connecting rod 342, the middle part of the first connecting rod 341 is hinged to the middle part of the second connecting rod 342, and the first connecting rod 341 and the second connecting rod 342 are arranged in a crossed manner; an electric push rod is connected between the end parts of the first connecting rod 341 and the second connecting rod 342 close to the bottom plate 310, the electric push rod comprises a fixed part 351 and a movable part 352, the fixed part 351 is fixedly connected with the surface of the bottom plate 310, the fixed part 351 is fixedly connected with the end part of the first connecting rod 341, and the movable part 352 is fixedly connected with the end part of the second connecting rod 342; the ends of the first connecting rod 341 and the second connecting rod 342 far away from the electric push rod are respectively connected to the bottoms of the pair of supporting parts 330.
In this preferred embodiment, the electric push rod is disposed between the ends of the first and second connection rods 341 and 342, and the distance between the ends of the first and second connection rods 341 and 342 is adjusted by the extension and contraction of the electric push rod, so as to adjust the distance between the ends of the first and second connection rods 341 and 342 and the height of the entire scissor bracket, thereby achieving the purpose of adjusting the distance and height of the pair of support portions 330 connected to the ends of the first and second connection rods 341 and 342. The heights of the pair of supporting parts 330 are adjusted to adapt to the heights of different pieces to be tested, so that the pieces to be tested with different heights can be subjected to full-coverage blowing by the air knife mechanism 400, and the distance between the pair of supporting parts 330 is adjusted to adapt to the widths of the different pieces to be tested, so that the pieces to be tested with different widths can be fixed on the pair of supporting parts 330 in a relatively matched manner, and the working stability of the device is improved.
Fig. 5 shows a flowchart of a second embodiment of the present application, which includes the following steps:
and S1, weighing the detection piece to obtain a first mass.
S2, placing the detecting member on the carriage 300, and controlling the carriage 300 to slide on the slide rail 200 at a set speed for a set time through the control valve 520 and the air cylinder 510.
In this step, the adaptive set speed and set time are set, so that the to-be-tested piece fixed on the bracket 300 can pass through the blowing area of the air knife mechanism 400 at an appropriate speed and then be fully blown, thereby ensuring the accuracy of the test.
And S3, taking down the detection piece from the bracket 300, and weighing the detection piece to obtain a second mass.
And S4, calculating the shedding rate of the catalyst coating layer according to the difference value of the first mass and the second mass.
In this step, the catalyst coat layer peeling rate is (first mass-second mass)/first mass.
The principles and embodiments of the present application are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present application. The foregoing is only a preferred embodiment of the present application, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present application, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments, or may be learned by practice of the invention.
Claims (9)
1. The utility model provides a catalyst coating rate of coming off detection device, its characterized in that, includes testing platform (100), the surface of testing platform (100) is equipped with a pair of slide rail (200), and is a pair of set up bracket (300) on slide rail (200), one side of testing platform (100) corresponds bracket (300) vertical direction sets up air knife mechanism (400), set up the drive on testing platform (100) the pneumatic drive mechanism that bracket (300) slided.
2. The device for detecting the catalyst coating peeling-off rate according to claim 1, wherein the pneumatic driving mechanism comprises a cylinder (510) connected with an air source (600), the cylinder (510) is arranged between the pair of slide rails (200), the piston extension direction of the cylinder (510) is parallel to the extension direction of the slide rails (200), the end part of the piston of the cylinder (510) is connected to the middle part of the bracket (300), and two sides of the bracket (300) are slidably clamped on the pair of slide rails (200) respectively.
3. The catalyst coating peeling rate detection apparatus according to claim 2, wherein a control valve (520) is provided between the air cylinder (510) and the air source (600), and the control valve (520) is used to control the air pressure of the air cylinder (510).
4. The device for detecting the catalyst coating falling rate according to claim 1, wherein the air knife mechanism (400) comprises an air cavity (410) vertically arranged on one side of the detection platform (100), the air cavity (410) is communicated with an air source (600), a plurality of air outlets (420) are uniformly arranged on the air cavity (410) in a vertical direction, and each air outlet (420) is arranged corresponding to a set position of the slide rail (200).
5. The device for detecting the catalyst coating peeling rate according to claim 4, wherein a pressure maintaining valve (430) is arranged between the air cavity (410) and the air source (600), and the pressure maintaining valve (430) is used for controlling the air pressure of the air cavity (410).
6. The device for detecting the catalyst coating peeling-off rate according to claim 1, wherein the bracket (300) comprises a bottom plate (310), the piston end of the cylinder (510) is connected to the bottom plate (310), sleeves (320) are respectively arranged at the bottom of the bottom plate (310) corresponding to the pair of sliding rails (200), the sleeves (320) are slidably sleeved on the outer sides of the sliding rails (200), and a supporting component is connected to one side of the bottom plate (310) away from the sleeves (320).
7. The device for detecting the catalyst coating peeling-off rate according to claim 6, wherein the supporting assembly comprises a pair of supporting portions (330), a pair of liftable fork shearing frames are arranged between the supporting portions (330) and the base plate (310), one ends of the fork shearing frames are connected to the base plate (310), one ends of the fork shearing frames, which are far away from the base plate (310), are respectively connected to the bottoms of the pair of supporting portions (330), and one side of the supporting portions (330), which is far away from the fork shearing frames, is provided with a supporting surface matched with the surface profile of the piece to be detected.
8. The catalyst coating layer peeling rate detection apparatus according to claim 7, wherein the scissor bracket comprises a first connecting rod (341) and a second connecting rod (342), a middle portion of the first connecting rod (341) is hinged to a middle portion of the second connecting rod (342), and the first connecting rod (341) and the second connecting rod (342) are arranged crosswise; an electric push rod is connected between the end parts of the first connecting rod (341) and the second connecting rod (342) close to one side of the bottom plate (310), the electric push rod comprises a fixed part (351) and a movable part (352), the fixed part (351) is fixedly connected with the surface of the bottom plate (310), the fixed part (351) is fixedly connected with the end part of the first connecting rod (341), and the movable part (352) is fixedly connected with the end part of the second connecting rod (342); one ends of the first connecting rod (341) and the second connecting rod (342) far away from the electric push rod are respectively connected with the bottoms of the pair of bearing parts (330).
9. A method for detecting a catalyst coating peeling rate by using the detecting device according to any one of claims 1 to 8, comprising the steps of:
weighing the detection piece to obtain a first mass;
placing a detection piece on the bracket (300), and controlling the bracket (300) to slide on the sliding rail (200) for a set time according to a set speed through the control valve (520) and the air cylinder (510);
taking down the detection piece from the bracket (300), and weighing the detection piece to obtain a second mass;
the catalyst coat peeling-off rate is calculated from the difference between the first mass and the second mass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010407253.6A CN111504843A (en) | 2020-05-14 | 2020-05-14 | Catalyst coating falling rate detection device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010407253.6A CN111504843A (en) | 2020-05-14 | 2020-05-14 | Catalyst coating falling rate detection device and method |
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| Publication Number | Publication Date |
|---|---|
| CN111504843A true CN111504843A (en) | 2020-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010407253.6A Pending CN111504843A (en) | 2020-05-14 | 2020-05-14 | Catalyst coating falling rate detection device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113702239A (en) * | 2021-09-14 | 2021-11-26 | 中自环保科技股份有限公司 | Falling rate detection method for motor vehicle exhaust treatment catalytic converter |
-
2020
- 2020-05-14 CN CN202010407253.6A patent/CN111504843A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113702239A (en) * | 2021-09-14 | 2021-11-26 | 中自环保科技股份有限公司 | Falling rate detection method for motor vehicle exhaust treatment catalytic converter |
| CN113702239B (en) * | 2021-09-14 | 2023-09-26 | 中自环保科技股份有限公司 | Method for detecting falling rate of catalytic converter for treating tail gas of motor vehicle |
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